Data Flow Diagram (DFD) With A+ Graded Answers 2024/25
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Course
Dfd
Institution
Dfd
What are the 4 key component in process modeling - Correct Answer 1)External entities: outside data sources/sink
2)Data store: data at rest
3)Data flow: data in motion
4)Processing logic
Process Oriented Approach - Correct Answer Focuses on how and when data are moved and changed
-inv...
Data Flow Diagram (DFD) With A+ Graded Answers
2024/25
What are the 4 key component in process modeling - Correct Answer 1)External entities: outside data
sources/sink
2)Data store: data at rest
3)Data flow: data in motion
4)Processing logic
Process Oriented Approach - Correct Answer Focuses on how and when data are moved and changed
-involves graphical representation: data flow diagram
-data tracked from sources, through intermediate steps/final destination
Data vs. Information - Correct Answer Data are raw facts; information is data converted into a
meaningful & useful context for decision making
Data flow - Correct Answer group of data that moves through system
-includes description of sources/ destination for each data
-data in motion, moving from one place in system to another
Data store - Correct Answer Data at rest, which may take the form of many different physical
representations
Processing logic - Correct Answer represents the way in which data are transformed
-work or action performed on data so that they are transformed, store, and destination
source/sink(external entities) - Correct Answer outside sources, give or get information
-origin or destination of data, sometime referred to as external entities
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